IT1232893B - Biodegradable articles based on starch - Google Patents

Biodegradable articles based on starch

Info

Publication number
IT1232893B
IT1232893B IT8967666A IT6766689A IT1232893B IT 1232893 B IT1232893 B IT 1232893B IT 8967666 A IT8967666 A IT 8967666A IT 6766689 A IT6766689 A IT 6766689A IT 1232893 B IT1232893 B IT 1232893B
Authority
IT
Italy
Prior art keywords
starch
opt
phase
water
copolymer
Prior art date
Application number
IT8967666A
Other languages
Italian (it)
Other versions
IT8967666A0 (en
Inventor
Bastioli Catia
Del Tredici Gianfranco
Lombi Roberto
Rallis Angelos
Original Assignee
Butterfly Srl
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Butterfly Srl filed Critical Butterfly Srl
Publication of IT8967666A0 publication Critical patent/IT8967666A0/en
Priority to IT8967666A priority Critical patent/IT1232893B/en
Priority to IL93620A priority patent/IL93620A0/en
Priority to GR900100160A priority patent/GR1000578B/en
Priority to EP90904276A priority patent/EP0413798B1/en
Priority to AT90904276T priority patent/ATE131505T1/en
Priority to KR1019900702386A priority patent/KR0169087B1/en
Priority to DE69024132T priority patent/DE69024132T2/en
Priority to HU902344A priority patent/HUT56384A/en
Priority to DK90904276.4T priority patent/DK0413798T3/en
Priority to PCT/EP1990/000375 priority patent/WO1990010671A1/en
Priority to DD90338507A priority patent/DD299280A5/en
Priority to US07/613,506 priority patent/US5262458A/en
Priority to BR909004768A priority patent/BR9004768A/en
Priority to JP2504196A priority patent/JP2925728B2/en
Priority to ES90904276T priority patent/ES2081975T3/en
Priority to CN90102132A priority patent/CN1038422C/en
Priority to AU51785/90A priority patent/AU628495B2/en
Priority to CA002028130A priority patent/CA2028130C/en
Priority to FI905511A priority patent/FI102288B/en
Priority to NO904880A priority patent/NO180781C/en
Application granted granted Critical
Publication of IT1232893B publication Critical patent/IT1232893B/en

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  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Compositions Of Macromolecular Compounds (AREA)

Abstract

Articles based on starch insol. in water, comprise (i) a phase comprising destructurised starch in the form of particles of ave. no. dia. below 1N; (ii) a phase comprising ethylene-acrylic acid (EAA) copolymer; (iii) a phase comprising IPN (interpenetrated network) obtd. from the interaction between starch and EVA copolymer; and opt. (iv) a water content lower than 6 wt.% (0-2 wt.%) calcd. on the total wt. of the 3 phases. The articles are prepd. by mixing starch and EAA copolymer in wt. ratio 1:9-9:1 (1:4-4:1), water, and opt. urea and/or ammonia, in an extruder heated to 90-150 deg.C, and bringing the water content to a value below 6 wt.%, and opt. ammonia content to below 0.5 wt.%.
IT8967666A 1989-03-09 1989-08-02 Biodegradable articles based on starch IT1232893B (en)

Priority Applications (20)

Application Number Priority Date Filing Date Title
IT8967666A IT1232893B (en) 1989-08-02 1989-08-02 Biodegradable articles based on starch
IL93620A IL93620A0 (en) 1989-03-09 1990-03-02 Biodegradable articles based on starch and process for producing them
GR900100160A GR1000578B (en) 1989-03-09 1990-03-07 Biosoluble materials based on amylum and preparation process
DD90338507A DD299280A5 (en) 1989-03-09 1990-03-08 BIOCHEMICAL ARTICLE BASED ON STAERKE AND METHOD FOR THE PRODUCTION THEREOF
BR909004768A BR9004768A (en) 1989-03-09 1990-03-08 BIODEGRADAVEL ARTICLES BASED ON STARCH AND PROCESS FOR PRODUCTION
KR1019900702386A KR0169087B1 (en) 1989-03-09 1990-03-08 Molded products degradable into starch microorganisms and manufacturing process
DE69024132T DE69024132T2 (en) 1989-03-09 1990-03-08 BIODEGRADABLE OBJECTS BASED ON STARCH AND METHOD FOR THEIR PRODUCTION
HU902344A HUT56384A (en) 1989-03-09 1990-03-08 Process for producing biodegradable products on starch base
DK90904276.4T DK0413798T3 (en) 1989-03-09 1990-03-08 Biodegradable articles based on starch and method of making them
PCT/EP1990/000375 WO1990010671A1 (en) 1989-03-09 1990-03-08 Biodegradable articles based on starch and process for producing them
EP90904276A EP0413798B1 (en) 1989-03-09 1990-03-08 Biodegradable articles based on starch and process for producing them
US07/613,506 US5262458A (en) 1989-03-09 1990-03-08 Biodegradable articles based on starch and process for producing them
AT90904276T ATE131505T1 (en) 1989-03-09 1990-03-08 STARCH-BASED BIODEGRADABLE ITEMS AND PROCESSES FOR THEIR PRODUCTION
JP2504196A JP2925728B2 (en) 1989-03-09 1990-03-08 Starch-based biodegradable article and method for producing the same
ES90904276T ES2081975T3 (en) 1989-03-09 1990-03-08 BIODEGRADABLE ARTICLES BASED ON STARCH AND PROCEDURE FOR ITS PRODUCTION.
CN90102132A CN1038422C (en) 1989-03-09 1990-03-08 Water-insoluble product based on starch and preparation method thereof
AU51785/90A AU628495B2 (en) 1989-03-09 1990-03-08 Biodegradable compositions based on starch and process for producing them
CA002028130A CA2028130C (en) 1989-03-09 1990-03-08 Biodegradable articles based on starch and process for producing them
FI905511A FI102288B (en) 1989-03-09 1990-11-07 Starch - based biodegradable products and method for their preparation
NO904880A NO180781C (en) 1989-03-09 1990-11-09 Process for making articles based on starch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT8967666A IT1232893B (en) 1989-08-02 1989-08-02 Biodegradable articles based on starch

Publications (2)

Publication Number Publication Date
IT8967666A0 IT8967666A0 (en) 1989-08-02
IT1232893B true IT1232893B (en) 1992-03-05

Family

ID=11304342

Family Applications (1)

Application Number Title Priority Date Filing Date
IT8967666A IT1232893B (en) 1989-03-09 1989-08-02 Biodegradable articles based on starch

Country Status (1)

Country Link
IT (1) IT1232893B (en)

Also Published As

Publication number Publication date
IT8967666A0 (en) 1989-08-02

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Legal Events

Date Code Title Description
TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19950831